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F F i i e e l l d d W W i i r r i i n n g g D D i i a a g g r r a a m m s s
External Switches and
Accessories
The following optional connections are available on the
mitigation control board (see hook-up diagrams
2, p.
18):
•
ACC1 and ACC2 accessory connections. Use when
connecting an accessory to the air handler that
could be considered a source of ignition (ex.
electronic air cleaner).
Scan QR code to view instructional
videos on field wiring for CleanEffects
or AccuClean electronic air cleaners.
18
•
Aoa/Aob audible alarm connections. Use when
configuring an audible alarm on the refrigerant
detection system of the air handler.
ACC1, ACC2, and Aoa/Aob are dry contacts and need
Figure
source voltage provided from either the accessory or
the unit's control wiring.
Connect using field-supplied 3/16" (Aoa/Aob) or 1/4"
(ACC1, ACC2) female spade connections.
Figure 2. Accessories Diagram
Thermostat
R
24 VAC HOT
FAN
G
24 VAC Common
B
Thermostat
R
24 VAC HOT
FAN
G
24 VAC Common
B
Electronic Air Cleaner, typical
Air Handler
ACC1a
ACCESSORY INTERLOCK 1A
ACCESSORY INTERLOCK 1B
ACC1b
Aoa
AUDIBLE ALARM OUT A
Aob
AUDIBLE ALARM OUT B
SWa
EXTERNAL SWITCH A
EXTERNAL SWITCH B
SWb
Blue
24VAC Audible Alarm, typical
Air Handler
ACC1a
ACCESSORY INTERLOCK 1A
ACCESSORY INTERLOCK 1B
ACC1b
Aoa
AUDIBLE ALARM OUT A
Aob
AUDIBLE ALARM OUT B
SWa
EXTERNAL SWITCH A
EXTERNAL SWITCH B
SWb
Blue
EAC
R
R
G
G
W
B
B
Alarm
R
V+
G
B
V-
18-GF81D1-1A-EN
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